FAIR VALUE DISCLOSURES - Fair Value Measurement Reconciliation For All Levels (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Total Gains Losses Realized Unrealized Included In [Abstract]
Net derivative gains (losses)	$ (1)	$ 0
Transfers into level 3		0
Level 3 | Corporate
Total Gains Losses Realized Unrealized Included In [Abstract]
Beginning Balance	11	14
Investment gains (losses), reported in net investment income	0	0
Net derivative gains (losses)	0	0
Total realized and unrealized gains (losses)	0	0
Other comprehensive income (loss)	(1)	0
Purchases	1	0
Sales	0	(1)
Transfers into level 3	0	0
Transfers out of Level 3	0	0
Closing Balance	11	13
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	0	0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period.	(1)	0
Level 3 | GMxB Derivative Features Liability
Total Gains Losses Realized Unrealized Included In [Abstract]
Beginning Balance	0	0
Investment gains (losses), reported in net investment income	0	0
Net derivative gains (losses)	6
Total realized and unrealized gains (losses)	6	0
Other comprehensive income (loss)	0	0
Purchases	(1)	0
Sales	0	0
Transfers into level 3	0	0
Transfers out of Level 3	0	0
Closing Balance	5	0
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	5	0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period.	$ 0	$ 0